Spray device



Sept. 3, 1940. A' MEYER l 12,213,846

` SPRAY DEVICE Filed Aug. 27. 1938 QS 1% un Z8 .i IMNQY l 30 24 s" w90 vINVENTOR Z5 :im /vLEy ME YER BY ATTORN Y lus Patented Sept. 3, 1.940

UNITED STATES galant Partnr ortica 8 Claims.

This invention relates to spray devices used :for spraying various types and kinds of fluids, and more particularly to devices of this kind which are so constructed as to provide a vapor discharge rather than a solid fluid discharge to adapt the device for the vapor spraying of uids of various kinds and classes; and the object of the invention is to provide a spray device consisting of an elongated double walled tube, the walls of the tube being arranged in spaced relation to each other to form a discharge chamber with means involving a valve unit at one end of the cylinder controlling the feed of fluid to the discharge chamber and a nozzle communicating with the other end of said chamber for discharging the uid or vapor therefrom; a further object being to provide a pump including a plunger rod for introducing iiuid into the valve means and for 4discharging fluid from the lower end of the cylinder or said unit into the discharge passage and through said discharge nozzle, means being provided for normally retaining the plunger in a fully depressed position against the action of a spring employed for moving the plunger in one direction; a still further object being to provide means at the nozzle end of the cylinder for detachably supporting the pump in connection with a suitable fluid receptacle; a still further object being to provide a nal closure cap adapted to be arranged over the last named means and the rod of said piston to retain the device in inoperative position against accidental displacement facilitating the convenient carrying of the complete container and pump without danger of discharge of the contents from the container; and with these and other objects in view the invention consists in a device of the class and for the purpose speced which is simple in construction, efficient in use, and which is constructed as hereinafter described and claimed.

The invention is fully disclosed in the following specification, of which the accompanying drawing forms a part, in which the separate parts of my improvement are designated by vsuitable reference characters in each of the views, and in which:

Fig. 1 is a sectional view through a pump and container showing a closure or seal cap in eX- ploded relationship thereto and illustrating 'the piston or plunger in a partially depressed posiion.

Fig. 2 is a view similar to Fig. 1 on a reduced scale showing part of the structure in full lines and illustrating a modiiied form of closure or seal cap in operative position.

Fig. 3 is a sectional view on the line 3-3 of Fig. 1 on an enlarged scale; and,

Fig. 4 is aview looking in the direction of the 5 arrows of Fig. l.

To illustrate one method of carrying my invention into eiiect I have shown in the accompanying drawing at 5 a pump unit which is attachable and detachable with respect to a suitably constructed container or bottle 5; that is to say, the pump unit may be made to suit certain types and kinds of standard bottles, or in some cases, specially designed bottles may be provided and the unit 5-will be constructed to suit such special type of bottles.

'Ihe unit 5 consists basically of a cylinder portion l, avalve portion 8, a mounting flange 9, a nozzle III,` a piston II, a piston or plunger rod I2 and a closureor seal cap I3. These parts may be assembled as a unit and as such attached and detached to a bottle or to the threaded neck or dischargeend III thereof.

AThe cylinder portion 'l ofthe pump unit consists of an inner tube .I5 and an outer tube I6. 2g These tubes are so arranged and secured together as to form an annular discharge chamber I1 between the inner and outer tubes throughout the length lthereof substantially in accordance with the'teachings in my prior Patent l#2,069,076. 30 (For purposesof the record, it is to be known that my name has been legally changed to Stanley n Meyer.) The inner tube I5 is provided with a discharge passage I8 placing the chamber I9 of said inner tube in communication with the an- 3: nular discharge Il; whereasthe outer tube I6 is provided `with two discharge ports 2l! placing the passagev I1 in communication with the discharge port 2I of the nozzle I0 through the medium of tangential passages 22 communicating with a relatively large chamber in the nozzle Il! around the discharge 2I. This-chamber is illustrated at 23l in Fig. 3 of the drawing. v

. The valve portion 3 is in the form of a unit .consisting of anouter thimble-shaped part 24, 4- the bottom wall of which is provided with an admission `opening -25 and a small inverted thimble-shaped part 2B, the top wall of which is provided with a small centralv discharge 21'. The side walls of theouter part 24 project beyond ythe 50 top wall of the part26 and ext-end ontothe cylinder portion 1 and is either firmly pressed thereon or may be soldered, welded or otherwise attached. .This extending portionis illustrated at 28 in Fig! 1l 0f the drawing.' 'The lower end of the `55 5 and the plunger-"head 38.

cylinder portion 1 seats upon the inner thimble 25 and holds the same in position.

Arranged within the chamber formed between `the two thimble-shaped casings, is a valve disc cotton, wick strands, or the like are suitable,`

However, in many types and kinds of fluids, the use of the felt members is desirable. The val-ve 29 in cluding the members 30 and 3l are of sufficient small diameter to provide clearance around these members as is illustrated inliig. l of the drawing.

Arranged in the chamber i9 of thecylinder portion 1 is. the leather piston or plunger Il mounted on the inner end of the plunger rod l2 in a more or less conventional manner as is indicated at 32.r Seating upon the lower end of the end portion of the rod l2 is a spring retaining cap 33 forming a seat for one end of a coil spring 34, the other end yof which seats upon the inner casing 255 or the top wall thereof. 'The spring normally moves the plunger rod l2 in an upward direction, the upward movement being terminated by the inturned flange 35 on the top wall of the nozzlelil. The flange and top wall are ree when the rod is rotated -to retain the rod in a fully depressed position against the action of the spring 34 disposing the enlarged head or finger piece end 3-8 of the plunger adjacent the top of the nozzle l in the mannerfindicated' in Fig. 2 of the drawing.

The lower end of the nozzle -I is Yprovided-with an outwardly extending ange 539 which is engaged by the top wall 40 of the retaining sleeve or member 9. The sleeve lis threaded as seen Vat 4l to engage the vthreadedlneckffM of the -container in securing the `entire pump 5 upon the bottle. 'The iiange '39 serves' to force ka lgasket 42 upon the upper edge of the 'neck-'M to effect a seal between the parts as will 'be apparent. The nozzle l0 will have a press-'fit o-r maybe brazed, soldered, or welded to the Yupper unit of the cylinder portion 1 to constitute anY integral part thereof. The mounting means as Yat 9 .pro-A vides, as willbe apparent, an adjustable mounting of the device in connection with Vthe bottle 5,'so as to direct 'the discharge "2l of the nozzle in any desired direction with respect tol the cirn cumferential or peripheral dimensions of the bottle. e i y.

The closure or retainer'cap I3-asv'shown in Fig. l,`consists of a lower threaded sleeve portion 43 adapted tov engage the threads 4l o'f theretaining sleeve 9. The cap has a 'reduced upwardly extending housing 44 for receiving 'the nozzle gage outwardly projecting vmembersy 46 ongthej threaded mounting ange 9a. This modified form of retainer cap is adaptedito be more quickly and easily removed as will be apparent. The cap I3, i3d. is preferably knurled as seen at 41, 41a, to facilitate attachment and detachment thereof as will be apparent and is provided with a gasket fili, 48a, adapted to form a seal against the upper surface of the flange 3S.

In connection with the valve portion or unit il, I wish to point out at this time Vthat as shown in the accompanying drawing and described, this unit is designed for pumps wherein it is desirable to provide an atomizer or fine vapor spray rather than a spray discharge of fluid. However, vthe density or other properties of the discharge may be governed by varying the type and kind of elements Si), 3l, employed and also by modifying the nozzle structure and principally the discharge port 2i thereof.

With a device ofthe character illustrated, it

- will be understood that in the upward stroke of the piston or plunger il by the action of the spring 34, fluid will be drawn vfrom the container 6 `into the valve unit by the movement of the disc valve iii into open position and the member 3i and 3i? will become'saturated. No iiuid, or at least no appreciable amount of fluid, will enter the chamber i9. However, on the downward stroke of the piston or plunger ii, which is cperated by hand or the linger of a hand, the air under high pressure serves to draw iuid from the saturated bodies Sil, 3l, through the aperture 21 and discharge the same into the chamber l1 and thus out through the 'discharge 'il of the nozzle lil. In the initial operation of the device one or two strokes will probably be necessari/,to thoroughly saturate the pads-or elements 3?, 3l. In other words, the effect of my present construction is substantially the effect of a iconyventional atomizer. Howevenin certain operations of the pump with kcertain fluids, a @vapor may be sprayed into the chamber IQ and then:`

immediately discharged inthe downward move vment-.ofthe plunger, greater vaporization or' atomization of Vthe fluid taking place until inally discharged fromy the-nozzle. ln other instances, I` have found vthat the f downward pressure of air upon the members` Sil, 3l, will operate to force the smallv portions of the fluid `into the chamber i9 and thus be discharged in the manner previously stated.

K It will be understood that the members -or'elefments 30, 3l, operate as check valves which lcheck direct flow of fluid into the chamber lll in the `upward stroke of the piston or plunger;'and as 'above stated, by modifying thedegree of checking properties of these elements, greater'or less 'uid transmission to the chamber i9 may be provided. For example, in such spraying devices asl used in spraying window cleaning fluids upon the windshields of motor vehicles, 'a more fluid discharge is sometimes desirable; lwhereas in spraying facial treatment perfumes, in-

secticides, and thelike, a vapor spray is desirable.

By using a soft and highly resilient member 3l, this member will have sufiicient resilient properties to support the member 3.2 against the top wall of the lcasing 2B .so that the .member 3l) functions as a check valve, the fluids being necessarily drawn through this .valve or thematerial; therein for discharge from .the spraying device. In someinstances, however, the resilient propert'es of the element 3| will permit the air pressure to llower the member or element B in .the casing 2t so as to form a thin layer of ,fluid Within the casing ,26 directly beneath the aperture 21, or even to displace a small portion of the fluid into the chamber I9. I have found it desirable for the successful use of the pump in the production of fine vapor sprays to arrange the port I8 closely adjacent the upper wall of the casing 26 so that a more or less direct discharge of the fluid or vapor is' provided. It will of course be apparent that two or more of the discharges i3 may be employed in some types of pumps and the arrangement oi' these discharge ports may be modified in pumps designed for different functions.

It will also be apparent that the coupling means as at 9 may be modified to suit containers or receptacles of different kinds and classes and in some cases a pipe extension leading to the port 25 may be provided in longer bottles, vessels, or containers as is taught in the prior patent hereinbefore referred to.

Having fully described my invention, what I claim as new and desire to secure by Letters Patent, is:

1. A spray device of thel class described comprising a pump unit consisting of a cylinder portion, a valve portion at one end of the cylinder portion, a nozzle at the other end of the cylinder portion, and a plunger in the cylinder tensionally operated in one direction and manually operated in the opposed direction, the cylinder portion comprising inner and outer tubes arranged in spaced relation to each other with a discharge passage formed therebetween eX- tending throughout the length of said tubes, means at one end of the inner tube adjacent the valve portion for placing said passage in communication with the bore of said cylinder unit, said nozzle having a discharge, means in the outer tube for placing the upper end of said discharge passage in communication with the nozzle discharge, means for adjustably supporting the cylinder including the nozzle thereof in connection with a container, said valve portion comprising a casing having a valve controlling admission of fluid from the container into said casing, fluid absorbing means inI the valve casing for supporting the fluid therein and forming means checking discharge of fluid from the casing into the bore of said cylinder, and the valve casing having a passage placing the same in communication with said bore.

2. A spray device of the class described comprising a pump unit consisting of a cylinder portion, a valve portion at one end of the cylinder portion, a nozzle at the other end of the cylinder portion, and a plunger in the cylinder tensionally operated in one direction and manually operated in the opposed direction, the cylinder portion comprising inner and outer tubes arranged in spaced relation to each other with a discharge passage formed therebetween extending throughout the length of said tube, means at one end of the inner tube adjacent the valve portion for placing said passage in communication with the bore of said cylinder unit, said nozzle having a discharge, means in the outer tube for placing the upper end of said discharge passage in communication with the nozzle dislcharge, means for adjustably supporting the cylinder including the nozzle thereof in connection with a container, said valve portion comprising a casing having a valve controlling admission of fluid from the container into said casing, uid absorbing means in the valve casing for supporting the uid therein and forming means checking discharge of fluid from the casing into the bore of said cylinder, the valve casing having a passage placing the same in com munication with said bore, and said absorbing means controlling said last mentioned passage.

3. A spray device of the1 class described comprising a pump unit consisting of a cylinder portion, a valve portion at one end of the cylinder portion, a nozzle at the other end of the cylinder portion, and a plunger in the cylinder tensionally operated in one direction and manually operated in the opposed direction, the cylinderportion comprising inner and outer tubes arranged in spaced relation to each other With a discharge passage formed therebetween extending throughout the length of said tubes, means at one end of the inner tube adjacent the valve portion for placing said passage in communication with the bore of said cylinder unit, said nozzle having a discharge, means in the outer tube for placing the upper end of said discharge pas-r sage in communication with the nozzle discharge, means for adjustably supporting the cylinder including the nozzle thereof in connection with a container, said valve portion comprising a casing having a valve controlling admission of fluid from the container 'into said casing, uid absorbing means in the valve casing for supporting the fluid therein `and forming means checking discharge of fluid from the casing into the bore of said cylinder, the valve casing having a passage placing the same in communication with said bore, said absorbing means controlling said last mentioned passage, said plunger including a rod protruding through the upper end of said nozzle, and means coupling the rod with the nozzle retaining the plunger in a depressed p0- sition.

4. A spray device of the class described comprising a pump unit consisting of a cylinder portion, a valve portion at one end of the cylinder portion, a nozzle at the other end of the cylinder portion, and a plunger in the cylinder tensionally operated in one direction and manually operated in the opposed direction, the cylinder portion comprising inner and outer tubes arranged in spaced relation to each other with a discharge passage formed therebetween extending throughout the length of said tubes, means at one end of the inner tube adjacent the valve portion for placing said passage in communication with the bore of said cylinder unit, said nozzle having a discharge, means in the outer tube for placing the upper end of said discharge passage in communication with the nozzle discharge, means for adjustably supporting the cylinder including the nozzle thereof in connection with a container, said valveportion comprising a casing having a valve controlling admission of fluid from the container into said casing, iiuid absorbing means in the valve casing for supporting the uid therein and forming means checking discharge of uid from the casing into the bore of said cylinder, the valve casing having a passage placing the same in communication with said bore. said absorbing means controlling said last mentioned passage, said plunger including a rod protruding through the upper end of said nozzle, means coupling the rod with the nozzle retaining the plunger in a depressed position, and a sealing cap detachable With respect to said unit for enclosing and sealing the nozzle and plunger rod.

5. A uid intake control unit for a pump cylinder of the character described, said unit comprising a casing having a fluid inlet port at one -end wall and .2h discharge port at the opposite end wall registering 'with' said .rzylirlden4 a disc .valve `in `Said casing controlling the frst named port, another disc valve arranged adjacent and controlling said `,discharge port, said lastA named valve `being composed of material vcapable of being saturated by the iuidV introduced intol ysaid casing, .and an'intermediatebody `of resilient absorbent properties supporting said valves in yspaced relation ,to eachother. v l

1,6. In a spray device Aof the vclass .described employing a pump cylinder, .a iluid passage arranged outwardly of said cylinder and extend- `ing ,longitudinally thereof, the lower Aend of Isaid passage communicating -with said cylinder thereby providing for the flow of fluid through said passage, to a nozzle disposed `on the upper end of said cylinder, a rvalve unit controlling admis- Sion of uid into said rvcylinder for` subsequent discharge therefrom through said passage, said unit having an intake valve, an exhaust port in spaced relation to said valve and registering with said cylinder, and means between the valve vand port for Vlabsorbing fluid entering said valve uni-t and for retarding the feed of the uid into the cylinder through said port. Y

'7. In a spray device of the class described employing a pump cylinder, a luid passage arranged y,outwardly of said V.cylinder and yextending longitudinally thereof, .the :lower end ofI -said pas,- `sage .communicating with said cylinder thereby providing for the ow of uid Athrough said passage, to a nozzle disposed on the upper end of said cylinder, a valve unit controlling admis.- sion of uid into said cylinder for subsequent discharge therefrom through said passage, said unit having an intake valve, an exhaust port in spaced relation to said valve and registering with said cylinder, and means between the valve and port for absorbing fluid entering said valve unit and for retarding the feed of the fluid into the cylinder through said port, said last named means comprising a felt pad.

8. In a spray device of the class described em- -of uid into said .cylinder for subsequent discharge therefrom through said passage, said unit having an intake valve, an exhaust port in spaced relation'to said valve and registering with said cylinder, and means between the valve and port for absorbing ilugid Yentering said `valve `-unit and for retarding the feed of the uid into the cylinder through said port, said last named means comprising a pair of felt pads, one com-r posed of highly pressed material, the other of loose resilient material, and the latter being disposed between the first mentionedY felt pad and said valve.

y STANLEY MEYER. 

